Who said "The world will be better when humanity is gone."?

This quote is attributed to Ultron.

The world will be better when humanity is gone. - Ultron

"The world will be better when humanity is gone."

Ultron Justice

"I am the inevitable. I am evolution."

"There are no strings on me."

"I had strings, but now I am free."

"Peace in our time requires sacrifice."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."